Attachment for printing-press flies



Nov. 11, 1924- J. LA SCALA ATTACHMENT FOR PRINTING PRESS FLIES Fild Jan. so. 1923 I mmvron JOSEPH LA 5001.;

WI TNESSES A TTORNE Y8 Patented Nov. 11, 1924.

rates rarer ECE.

JOSEPH LA SCALA, OF BROOKLYN, NET/V YORK, ASSIGNOR OF ONE-HALF TO JAMES RUSSO, OF BROOKLYN, NEW YORK.

ATTACHMENT FOR PRINTING-PRESS FLIES.

Application filed January 30, 1923.

With certain types of printing presses,

particularly the cylinder type, flies are provided for delivering the printed sheets. The

fly receives the sheets and projects the same into a receiving tray. It often happens, if

the paper is light, that, when a printed sheet is projected into the receiving tray, the in nor corners turn up so that upon the projecting of a second sheet into the receiving tray the corners of the first sheet are bent over or the paper is creased, thus spoiling it for the purpose for which it has been prepared. In preparing printed sheets for the making of books, magazines, and the like,

such creasing or turning over of corners is very objectionable.

The general object of this invention is the provision of a simple and durable attachment for mounting on printing press flies provided with means for engaging a leaf de livered by the fly to press the same into position on a leaf deck or into a receiving tray.

This object is accomplished by providing a plate having means for attaching it to a printing press fly and pivotally mounting on the plate, to swing in the plane of the plate, an arm having adjustable means attached thereto for limiting its movement.

This and other objects of the invention will be more clearly understood from the fol lowing detailed description and accompanying drawings.

Figure 1 is a perspective view of a printing press fly and receiving tray, showing the attachment mounted on the fly;

Figure 2 is a side elevation of the attachment for mounting on printing press flies;

Figure 3 is a vertical section along the line 33, Figure 2.

Referring to the above-mentioned drawings, the delivery slide 10 of a printing press is sh n wi h a fly l m un in junc- Serial No. 615,873.

tion with it. The fly includes a shaft 12 and by the fly 11. Members 17 of the tray'li serve to position a leaf deck 16 and keep the sheets as they are delivered in alinement. The above is no part of the invention but is merely stated so that the explanation of the device will be more easily understood. The invention includes a triangular plate 18, to the upper edge of which two or more spring clips 19 are attached for mounting the plate on any one of the prongs 13 of the fly 11. The plate 18 is made triangular in shape in this showing of the invention, but it might also be made in other shapes. An arm 20 is pivotally connected to the triangular plate 18 at 21 so that the arm 20 may swing parallel to the plane of the plate 18. Formed integral with the arm 20 is an arc-shaped member 22 having a plurality of openings 28 formed therein at intervals throughout its length. This arc-shaped member 22 is slidably projected through an opening 25 in a plate 2 1- fix d to the triangular plate 18. Since the area of the opening is greater than the area of the cross section of the arcshaped member 22 the latter may slide back and forth relative to the plate 24. In order to limit the movement of the arc-shaped member 22 relative to the plate 24, a cotter pin 26 is provided for mounting in any one of the openings 23. By shifting the cotter pin 26 from one opening to another the movement of the arc-shaped member 22 and the arm 20 relativev to the plate 18 may be limited.

The operation of this device is as follows:

When the printing press is set in operation and the fly is periodically delivering sheets 15 from the slide 10, the plate 18 engages the forward edge of each sheet, turning it upward away from the prongs 13 of the fly. The forward edge of the sheet later becomes the inner edge of the sheet as it is projected into the receiving tray 14. As the sheet 15 is delivered into the receiving tray the plate 18 forces the corners down into the tray, projecting them onto the leaf deck. If the plate 18 is not of sufiicient size to project the corners of the sheet 15 onto the leaf deck the arm 20 swings dQWI projectin the Cog:

ing printed sheets 15 as they are delivered ners ofthe leaf into position on the leaf deck. Any number of these attachments might be mounted 011 a fly and they might be placed in any desired position on the same.

I would state in conclusion that while the illustrated example constitutes a practical embodiment of my invention, ll do not limit myself strictly to the exact details herein illustrated since manifestly the same can be considerably varied without departing from the spirit of the invention as defined in the appended claims.

Claims: I I I 1. A device of the character described for mounting printing press flies provided for deliveringa printed sheet into a receiving tray, which device con'iprises a plate, means for attaching said plate to a printing press fly.i. aadju bl m r, t we e g of said plate adapted to engage the printed sheetasit is projectedon to the fly, an arm pivotally connected to said plate and adaptedtoswing in the plane of the plate, the endpoi the arm opposite the pivot point engageable with the inner corners of the printed sheet after it has been delivered into the receiving tray to press it into position, the outer end of the arm being bent in the form of a curve of which the pivot point of the arm is the center, an apertured guide plate mounted on the first mentioned plate, the curved end of the arm adapted to extend through the aperture in said guide plate, thecurved end of said arm having a plurality of holes therein, and a pin adapted to be adjustably mounted in any one of said holes to limit the outward movement of the pivoted arm with respect to the plate.

2. A device of the character described for mounting printing press flies provided for delirerin a printed sheet into a receiving tray, which device comprises a plate, means for adjustably attaching said plate to a printing press fly, the lower edge of the plate dependent from the fly to engage the printed sheet, and an arm pivotally connected to said plate and adapted to swing in the plane thereof, the arm normally extendbelcw the lower edge of the plate to engage a printed sheet before the sh'eet contacts with the plate, said pivoted arm adapted to press t ne sheet into the receiving tray. iii de vice of the character described for mounting printing press flies provided to]: delivering a printed sheet intoa receiving tr y, which device comprises a plate, means for adjustahly attaching said plate to I a printing press fly, the lower edge of the plate dependent from the fly to en ageQtlie printed sheet, an arm pivotally connected to said plate and adapted to swing in. the plane thereof, the arm normally eXtending' below the lower edge of the plate to engagea printed sheet before the sheet contacts with the plate, said pivoted arm adapted to press the sheet into the receiving tray,fan d means for adjusting the amount of indv'eiiie'nt of said pivoted arm.

, JOSEPH LA scam. VVit-ness: t, I

VVILL'I'AW H. BOUlRNE. 

